THE CRUSTACEA OF NEW JERSEY. 405 



marked. Front moderate, advanced a little, width about two- 

 sevenths greatest width of carapace. Edge of front slightly con- 

 vex to nearly straight, with slight median notch, and separated 

 from supraorbital edge by slight notch at external edges. Orbit 

 rather ovoid, as viewed above rather deeply incised in carapace, 

 inner edge convexly elevated and outer with slight median notch, 

 also another slight notch in remaining or outer half. Infra- 

 orbital edge with spine at inner corner and broad flange on outer, 

 both visible as viewed above. First anterior lateral tooth of 

 carapace coalesced with smaller external triangular orbital tooth, 

 and edge of former triangularly blunt or lobiform. Second 

 anterior lateral tooth larger, separated from first by deep notch, 

 rather triangular and apex directed nearly vertically. Third 

 anterior lateral tooth similar, usually directed a little more" out- 

 ward. Fourth lateral tooth shorter, sharply pointed, tip acute, 

 straight on outer edge, and transverse ridge extends from its 

 front edge obliquely back a short distance on carapace. 



Eye rounded, with constricted pedicel, base a little swollen. 

 Antennules robust. Antennae slender, reaches to outer supra- 

 orbital spine. Small tubercle just below coalesced anterior lateral 

 spine. Subbranchial and sternum with granulated surfaces. Outer 

 maxillipeds broad, cover buccal cavern completely, ischium 

 width about two-thirds its length, length of merus two-thirds its 

 width, and three remaining joints subequally short. Chelipeds 

 large, minutely granulated, slightly unequal. Propodus with 

 large swollen appearance, especially externally, smooth, and w ith- 

 out ridges or grooves. Dactyl curved down from elevated base, 

 with large or conspicuous convex tubercle at base externally on 

 larger cheliped, and rest of cutting-edge with several more small 

 irregular tubercles or teeth. Also large tubercle at outer basal ar- 

 ticulation of dactyl, though on front upper edge of hand. Slisfht 

 longitudinal median basal groove on upper surface of dactyl. 

 Pollex robust, elongate, triangular, with denticles along nearly 

 straight cutting-edge, and median ones enlarged. Outer and 

 inner surfaces of pollex with longitudinal groove, though usually 

 better developed on former. Smaller examples with two similar 

 grooves sometimes on both faces of pollex and also dactylus. in 



